The '''Bloody Baron''' (late [[First millennium A.D.|10th century]] — early [[11th century]]) was a [[wizardkind|wizard]] who attended [[Hogwarts School of Witchcraft and Wizardry]] in the [[Hogwarts Founders|Founders]]' time and was Sorted into [[Slytherin]] house. After Hogwarts, he fell in love with [[Helena Ravenclaw]], but she did not love him. He was sent by [[Rowena Ravenclaw]] to find Helena in [[Albania]], but Helena refused to return with him and so he killed her in a rage. When he realised what he had done, the Baron stabbed himself with the same knife and died. Since then, he is one of the [[ghost]]s that haunts [[Hogwarts School of Witchcraft and Wizardry]], and the ghost of Slytherin house. Covered in Helena Ravenclaw's blood to this day, he earned himself the moniker of the "Bloody Baron".

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'''Madam Rolanda Hooch''' (fl. [[1900s|1901]]was a strict but caring [[Wizards|witch]] who worked as the [[Flying (class)|Flying]] [[Flying Instructor|instructor]], [[Quidditch]] [[Quidditch referee|referee]] and coach at [[Hogwarts School of Witchcraft and Wizardry]] during, at least, the [[1990s]]. Madam Hooch likely attended the school as a student once and was probably a member of her House's Quidditch team some time before her graduation. She learnt to fly on [[Rolanda Hooch's Silver Arrow broomstick|her own Silver Arrow broomstick]] sometime during the [[Great War]], and returned to Hogwarts for a job at some point where she worked under [[Headmaster]]s [[Albus Dumbledore]], [[Dolores Umbridge]] and possibly [[Armando Dippet]], [[Severus Snape]] and [[Minerva McGonagall]].